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United States Department of Agriculture

Agricultural Research Service

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Image Number K8451-1

This 1/4-inch-long crustacean, Hyalella azteca, is common in aquatic systems and is used by scientists as an indicator of environmental health and water quality in streams, lakes, and other bodies of water.

Photo by Scott Bauer.

640 pixels wide: (k8451-1.jpg)

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Last Modified: 8/13/2016
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